Starting device for explosion-engines.



H. WAYTE. STARTING. DEVICE FOR EXPLOSIVE ENGINES. APPLICATION FILED JAN.5', 1906. RENEWED JULY 9,1909.

936,964. Patentd 0'ctl12,1'909.

62ml. KM

ATTORNEY I UNI TED STATES PATENT OFFICE.

HARRY WAYTE, OF MILWAUKEE, WISCONSIN, ASSIGNOR TO MEYER DESENBERG, JR.,OF KALAMAZOO, MICHIGAN.

starting STARTING DEVICE FOR EXPLOSIVE-ENGINES.

- Specification of Letters .latent.

' Pate ted Oct. 12, 1909.

- a ncation mea refiner -arses, seriai m'asmcjo. Renewed July 9, 190a.Serial No. 506,845..

.To all when itmay-concem:

,Be it known-that nnmewimg citizen of the United .States, residing atMih wau'kee, county of. Milwaukee, and State of Wisconsin, have inventednew and useful Improvements in Starting Devices forExplosive-iEnginesfof which the following is a specification. v

My "nvention relates ,to'iniprovements n.

es 7 I The object of IIIYdDVQHtlOD is to provide simple and practicalmeans for releasing the crank in case of a premature ignition, where-'by injury to the operator will be avoided,

In. the following description reference is .had to the accompanying-drawings in .Figure .1 is my invention. .2 is a sectional viewdrawn-online of Fig. 1. Fig. 3 'is a plan view showing "a modified formof construction.

. views.

I 'tion engine- Like parts are identified by the same referencecharacters throughout the several 1 is the crank shaft of: aninternalcombus- 2 is a' pin projectingradially from the shaft andadapted to engage in a notch 3 formed in the edge. of a hub 4 of themanually actuated crank '5. The notch 3 is provided with a straight edgea and inclined edges 6 b, the inclined edge I) is adapted to be. engagedby the pin 2 when the engine is properly started, the pin 2 beingadapted'to push the crank hub outwardly by. pressing upon the angularsurface I).

6 and 7 are bearing rings th1'ough which the crank shaft 1 passes, and 8is a sleeve encircling the shaft andiextending through the bearingrings. p r A screw threaded collar 9 is adjusted to the crank shaft andforms an abutment for the sleeve 8, the other end of the sleevejbeingformed with ratchet teeth 10 adapted to be engaged by counterp hub 4.The ratchet teeth on the IsleeveB'are inclined in the; oppositedirection from'i'that of normal shaft rotation. I

Between the 'bearing rings- 6 and 7 1s a 'ratchetwheel' 15 fast on thesleeve 8 with teeth also inclined in the direction opposite that ofnormal shaftv rotation, and adapted devices for internal combustion aplan view, part in section, of

i "to beengaged by a dog 16, which is pivotally connected with the frameat 17.

*In operation when the crank hub 4 is.a.d. usted to engage the pin 2against the straight edged surface -a ,*the teeth 11 will engage theteeth 10 on-the sleeve 8, whereb; sleeve 10 will be turned with the'crank andcrank shaft 1.- In caseof a premature ignition in the'engin'ecylinder, the motion of crank shaft 1 will be reversed. Do I preventsbackward rotation 0% the sleeve 8 and the teeth 10 acting upon theinclined surfaces-of the teeth 11 are therefore made effective tocrowdi'the crank hub outwardly from thepin 2 until the pin is disengagedfrom the surface a of the notch and bears upon the surface'b' afterwhichthe continued movement of the pin willbe effective to also crowdthe crank hub outwardly until .-r.eleased. i

Referrin 'tof'Fig. 3 it will be observed that the s eeve 18 similar tosleeve '8,'-"is provided with teeth20, the sides of which 16 however areinclined in opposite directions from the axis of the crank shaft 1, thecrank shaftbeing provided with a pin 21 in addition to thepin-2. Themutually engaging teeth- 10 and 11 of the sleeve'and crank hub respectively are omitted in this'construction.

'Ratchet teeth 25 are provided on the sleeve and 2. The ratchet teeth 25are'formed ona projectin ileeve an teeth constituting a ratchet memthecrank abuts the sleeve 18 when the pin 2 is engaged against the straightsided 01'- tion of the notch 3 and that'one edge of notch extendsangularly from the base of annulus on the sleeve 18, the

It will be observed that-the hub 4- of the thenotch in the direction ofshaft rotation.

The outer edge of the notch 3' is substan tially parallel with the shaftaxis at the base of-the notch, thus allowing the crank hub to grip thepin 2' and actuate the shaft 1.

.The other edge of the notch 3 is substan-' extends '"diver'gen-tlyorangularly in a direction opposite that of normal shaft rotation.*crankshaft l is actuated from the engine in either direction, .the pin21, acting upon the teeth 20, crowds the sleeve 18 outwardly towar'dtlieend of the crank shaft and as the lVith this construction when the notch3.

outer end of this sleeve abuts the hub 4:, the latter is also pushedoutwardly to disengage it from the pin 2 or move it sufficiently so thatthe pin 2 no longer bears upon the straight si'ded'portion at. the'baseof the Having thus described myinvention what I I claim as new anddesire to secure by. Letters Patent is,

,1. The'combination with a crank shafthaving a radially projecting pin,of a crank having a hub provided with a notch adapted v to receive.s'aidpm, the notch having a of the sleeve; said teeth having inclinedsurfaces and said sleeve being free to move longitudinally to push thecrank hub from said pin.

2." Ihe combination with a crank shaft having radially-projecting pins,of a sleeve loosely mounted on said shaft and provided with teeth havingtapered sides normally en-' gaging'one'of said pins, peripheral ratchetteeth on said sleeve, a dog mounted on a stationary support andengaging. said ratchet ,4 teeth, said dog being arranged to prevent .the

rotation of the sleeve in a direction opposite to that of normal shaftrotation, together with a crank having a hub provided with a notchadapted to receive the other pin when the hub is ina position abuttingsaid sleeve.-

3. The combination of a crank shaft having a pair of rigid radialprojections, a sleeve loosely mounted on the shaft between theprojections, and having an angular face at one end adaptedto' en 'agethe corre sponding projectlon, means for holding said sleeve 'agamstrotation in a direction op 0-,, site to that of normal 'shaft'rotation,an a crank having a hub provided with a notch adapted to receive theother shaft projection when adjusted to the end of the shaft in a'position to abut said sleeve.

w 4. The combination of a' crank shaft having a pair of rigid radialprojections, a

sleeve loosely mounted on the shaft between the projections, and havingangularly divergent faces at one end adapted to receive the adjacentshaft projection between them," means for holding said sleeve againstrotation in a direction opposite to that of normal shaft rotation and acrank having a hub provided with a notch adapted to receive the othershaft projection when adjusted to the end of the shaft in a position toabut said sleeve. I

In testimony whereof I afiix my signature in the presence of twowitnesses. v HARRY WAYTE. VVitnesses:

Lnvnnn'rr 0. WHEELER,

PEARI, GROB'BEN.

